Warm air furnace



D. R. BARD WARM AIR FURNACE March 1, 1938.

Filed April 1, 1957 l BUR ER 3 Sheets-Sheet 1 a r M; ff. 50rd Much1,1938. D. R. BARD I ,109,876

- WARM AIR FURNACE Filed April l,- 1937 3 Sheets-Sheet 2 I I f v 32 II515 1 'A|R\ 28 1 23 2/0 I z? 22%"; H Z5] [25 cio 31 24 :JL 1 l I MW00/6 Bard D. R: BARD 2,109,876

WARM AIR FURNACE Filed April 1, 1937 March 1, 1938.

3 Sheets-Sheet 3 roent enir; 1, less W at Ami-memos Dale E. BMW, Bryon,@hio Application e s ll, new, Serial No. access to E arranged insuperposed relation laterally of the radiator in a neat and compactmanner at one end portion of the furnace, such that the air is forced.by the blower into the-lower end of the radletcr who. is heated duringits upward trevel.

Ulther objects and advantages oi the invention will hereinafter appearand for purposes of illustrction but not of llmitstion, on embodiment isshown on the occomwsnylnc drawings in which Figure l is s side elevationof the iurnooe with o. portiorl oi the shell or outer cosine hrolrencwsy to show the construction of the ports;

Fig. 2 is s trcnst'erse sectional elevation sch stsrltislly on. the line3-?! ct lite. .i;

Fig. 3 is e vertical sectionelelevotlon scheme- 'tisily on thelloetil-53 oi" l;

Fig. t is so cool elevctiorl oi" the furnace with some of the portsoi-cites owes] to show the men not in which the oil burner is mo'lmteosml the manner in which the air stream is divided as it is torcecl intothe reclletor chamber;

it is o transverse sectional elevation twitch through the upper enrlportion of the resistor structure showing by arrows the trcvel of theproducts of combustion;

Fig. t is c vertical. sectional elevstioh substantisllw on the line t--tof Flo. i showlnw the hefie adjacent the smoke pipe; l Fig. 7 is e.transverse section sulostchtlolly on the line ll-l oi Fig. 8 lookingupwerfiy into the inclined tches sml showing the some piste in position,who.

Flo. 8 lo en enlarged trscmeritorw werticcl sec tioncl Viewsubstantially on the line t -t of l te. t. The illustrated-embodiment oithe invention comprises e. worm sir furnace ha rless outer shat motelcool cosine; or shell it which is of is rectshsulorin shape. The shellis divir'leti intotwo compostmerits by means of o-tertlcolly disposedpartition M. In one compartment are dispos'eslthe combustion chamber andradiator til I audio the other compartment are disposed o blower ltwhich is on o horiwcntsl one} encasement to the blower cool burnerstructures.

(cl. res-41c) platform it, and directly therebenesth on oil burner it.The blower it, which preferably consists of a squirrel cage type fendriven by on electric motor it, draws in cold air through an opening illin the top'of the shell or we I 5 it through filters lit of glass woolor other suitable material and forces the stream oi sir into e.downwardly clisposec conduit it which is lusts posed to the partitionll.

The conduit it is some into two sections by means oi a, partition member2t which extends from one side of the conduit to the other see. Thefront end of the partition is opened end the resr end. is closeol exceptfor on opening fill through which the nomle' oi the oil homer itetztencis; the opening ill leading flirectlw into the combustionchemloer. its shows is l, the

lower one! of thecono'uit inclines team's-wally so thst sir is directed.lots the lower earl of the interior of the rest compartment. $535tiiwitiimz the air into the two streams, more eficieltt Priestlngthereof is obtained. It will he ep c-erect clue to the compactarrangement oi the mower and humor, the size of the insttlllctiolz ismatte rlelly retlucecl-sncl theorist tlrlereot is reeluceci to aminimum.

The irorlt encl of the shell is its" to zlcrlelv t2 hovimg louvres lothe lower wortlow cool this panel may he removed to cfiorcl tweets Itwill imtlerstoocl that my switeole t me of oil homer til oi the pressuretype my toe employed.

Disposed in the resrwei-el comrlortmetlt of the cosine, it ere themalls-tor who combustion chose her structures. its shows is. Figure lees.tl suowort c clsltlorm on which the fire hrlcle. structure tt lsscpoortecl. Rising from the slot-- form 2t ore tour side wells 2?! ofthe rctiiotce cool to the upper emls of the wells is connected the toowell. lit.- Fol'merl to oppcseil sitle wellsv 2?! ere s series ofupwardly who inwsrcllw iocllhieol open-entice tubes 2% which arestilcstswtlolly rec tcnscler or soucreiii crose section. The mower"terminotes dlccoholly with respect to the citte WHERE; Connected to theprojecting lower portions of the tubes 2t and Joined to each set ofthree tubes on that mule is s deflector or-loeme plate fit which curvesoutwsrcily sod downwardly. the lower oortlorl thereof belowsuhstcwtlelly worsllel to the Eli -wall of the radiator.

pensive structure is produced but one which eihciently imparts heat to avery large volume of air introduced to the rear compartment of theshell.

As shown in Figure 5, the tubes 29 on each side are spaced from eachother and the outer tubes are spmed from the adjacentwells El. Thisenables the products of combustion inside the radiator to pass upwardlywithin the combustion chamber C between the tubes and to contact witheach side of the tubes over the major portion thereof. Extendingreerwardly from the upper end of the combustion chamber housing is apipe ill which may lead to the ususl smoke stack, providing an exhaustpassage for the products of combustion. The arrows on Fig. show thetravel oi the gases within the upper portion of the combustion chamberand indicate how the heating oi the tubes is accomplished.

To insure that the heated gases or products of combustion do not passdirectly to the smoke pipe 3i, but to cause the some to more nearlyfollow the path indicated by the arrows on Fig. 5

so that the gases pass around the major area of the individual dues ortubes 23, a bailie plate 33, substantially triangular in shape fits inbetween the rearxnost pair of tubes es. The basic plate 33 has its lowerend resting against a brackat M and isprovlded with a combined handleand reinforcing piece it on its under side. The upper end oi. the baille3% bears against a bar til which is spaced a short distance beneath thetop Since the baflle 33 is directly in front oithe smoke pipe 3i andcomrs the space between the rearmost pair of tubes 25, the gases andother products of combustion must pass upwardly over the battle plate 23or in rear oi the upper portions of the tubes 1'5 as will readiiy beapparent.

As best shown in Fig. '7, the space on each side of the *lower end orthe plate 93, adjacent the lower end thereof, is closed in any suitableman nor by s filler piece 31 leaving a relatively small opening 38 ateach end so that soot and the like will drop through the opening 58 intothe combustion chamber. In use, the chamber, divided by the baille plate33 and the rear wail of the radiator it, may receive soot, etc. and inorder to clean out that pocket, the baffle plate 3; may

be inclined upwardly and rearwardly and thus be removed-access being hadthereto through the clean-out opening 39.

It is to be understood that numerous changes in details of construction,arrangement and operation may be effected without departing from in theappended claims.

What i claim is:

l. A warm air furnace comprising a. shell, a.

partition dividing said shell into inner and outer portions, acombustion housing within the inner portion of said shell, meansproviding a conduit leading from the upper to the lower portion oi saidshell for admitting cold air, a platform dividing said outer portion ofsaid shell adjacent the conduit into upper and lower compartments, ablower in the upper compartment on said platform for forcing air intosaid conduit, an oil burner in the lower compartment, and meansproviding an opening for the oil burner nozzle through said conduit.

2. A warm air furnace comprising a shell, a partition dividing saidshell into two chambers, a fuel burning device and a blower disposed inone chamber and arranged in vertically spaced relation one above theother, a cold air duct Junteposed to said partition and leadingdownwardly from said blower to the lower portion of the second chamber,a. radiator in said second chamber, and means in said duct for dividingthe air stream and also affording connection of said fuel burning devicewith the interior of said radiator.

3. Awcrm air furnace, as claimed in claim 1,

wherein the opening providing means is disposed one chamber and arrangedin vertically spaced relation one above the other, a platform forsupporting said blower, a radiator in said second chamber. a cold airduct juxtaposed to said partition and leading from said blower to thelower end of said radiator, and means in said duct providing an openingto said radiator and sealed from the interior of said duct to enable aportion of said fuel burning device to extend into said radiator.

V DALE R. BARD.

